| Literature DB >> 730182 |
F Serville, C Junien, J C Kaplan, M Gachet, J Cadoux, A Broustet.
Abstract
An 8-year-old girl with profound mental retardation and a neurologic syndrome associated with morphologic abnormalities was found to have a supernumerary small submetacentric chromosome. Several members of her family carried a balanced translocation t(12;18)(p12;q11), and the child's karyotype could be explained by 3:1 maternal segregation (tertiary trisomy). The proband was trisomic for 12p13 and 18p. A gene dosage effect was demonstrated for triosephosphate isomerase and glyceraldehyde-3-phosphate in erythrocytes and leukocytes allowing us to assign the corresponding loci to the tip of the chromosome 12 short arm.Entities:
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Year: 1978 PMID: 730182 DOI: 10.1007/bf00277574
Source DB: PubMed Journal: Hum Genet ISSN: 0340-6717 Impact factor: 4.132